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0 byte upgrade file from Migration tool

I am trying to upgrade from a TZ400 to a TZ370W and when I use the migration tool it says it is successful but it outputs a 0 byte file. If I attempt to upload that file to the target firewall it says it is corrupt. I have opened the file in notepad and it has no content at all in it.

Category: Entry Level Firewalls

Best Answer

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    LarryLarry All-Knowing Sage ✭✭✭✭
    Answer ✓


    Are you running the Migration tool from within MySonicWall or from the URL?

    I just ran this in Firefox from the URL ( and it provided the appropriately sized output file.

    Suggest you try an alternate browser and go direct.

    Post your results.


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    RexRex Newbie ✭

    This did work. I was using Chrome originally (I was using the URL provided). Tried it with Firefox and it correctly output a normal sized file.

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    tcantintcantin Newbie ✭

    Good day.

    I have to migrate from NSA2400 (release to NSA 2650 (

    During the process, the original configuration seems to be found as the migration tool see the interfaces with correct settings. But finally I got the same issue having 0 byte output file. I tried the migration tool, with Chrome and Firefox.

    Any idea?

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    LarryLarry All-Knowing Sage ✭✭✭✭

    @tcantin - the only suggestions I have: Open Firefox, clear the browser's cache (retain your cookies), close Firefox. Reopen Firefox and retry the Migration Tool.

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    blublubblublub Newbie ✭

    As said:

    Clear Browser history

    Try different browser


    try a different PC if you are behind a FW with GAV or simialr


    Try a 1:1 mapping inside the config tool

    I had the same issues and at one point it finally worked. However afterwards 2 o3 FW rules were missing and 2 NAT rules were not migrated - so even if it works a thorough inspection is needed

  • Options
    LarryLarry All-Knowing Sage ✭✭✭✭

    so even if it works a thorough inspection is needed

    THIS! So very much so!

    The only options I can come up with (thanks @TKWITS ) is:

    1. Have both devices up and go screen by screen through each of the functions and settings (Tip: keep one off the network to avoid major problems!)
    2. Generate a TSR from each device and use a utility like Beyond Compare to scroll through the listings.

    Either approach is mind-numbingly tedious.

    The alternative is to build from scratch. But there's no telling how long that could take when a device can have upwards of several dozen Rules and 100s of Address Objects and Groups.

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